Illustration of a heraldic rampant lion on hind legs, like those found on a coat of arms
Hello all, I have a Scrub Oak tree in my front yard, and I have St. Augustine underneath it. The grass is very thin and I was told that is because oak trees turn the soil acidic. I had lime put down last year but the grass still looks the same.ello all, I have a Scrub Oak tree in my front yard, and I have St. Augustine underneath it. The grass is very thin and I was told that is because oak trees turn the soil acidic. I had lime put down last year but the grass still looks the same.
Plants that grow well in an acidic soil are azaleas, blueberries, endive, hydrangeas, rhododendrons, rhubarb, potatoes, shallots, sweet potatoes, and watermelons. Adding lime or using woodstove or fireplace ashes can raise the soil s pH to the desirable pH range. Alkaline soil has a pH higher than 7.0.